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design of experiments

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780171
EISBN: 978-1-62708-268-6
... necessary to confirm or rule out suspected causes. This chapter discusses two predominant methods for doing this, namely analysis of variance (ANOVA) and Taguchi methods (a more powerful technique based on ANOVA). analysis of variance design of experiments failure causes failure mode assessment and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780147
EISBN: 978-1-62708-268-6
..., was fabricated from the correct material, did not experience any out-of-specification loads, and so on, it should assess if the component design is adequate. During the design process, the intent is usually to make the component stronger than the loads it will experience, thereby assuring it will...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780189
EISBN: 978-1-62708-268-6
... Abstract At the conclusion of a systems failure analysis, the people involved should have a much more in-depth understanding of how the system is supposed to work. The analysis should help understand shortfalls in the design, production, testing, and use of the system. The failure analysis team...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780067
EISBN: 978-1-62708-268-6
... Contamination Design analysis Statistical considerations Design of experiments After discussing the aforementioned topics, the last two steps in the four-step problem-solving process are addressed (i.e., identifying potential solutions and selecting the best solution). In the failure analysis...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780075
EISBN: 978-1-62708-268-6
... Abstract A product pedigree describes its design and how it was built and shows that it was built in accordance with the drawings and other documentation defining the product configuration. Evaluating the pedigree of a failed product can help to rule in or rule out hypothesized failure causes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780157
EISBN: 978-1-62708-268-6
... extension of the preceding chapter on design analysis. Statistics is a branch of mathematics dealing with the collection, analysis, and interpretation of data from a sample population of objects or measurements. Statistics refers to gathering numerical data to present information about a subject...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780057
EISBN: 978-1-62708-268-6
... design meets its requirements. If a fault-tree analysis shows that the probability of loss exceeds a specified limit, the engineering team can review the fault-tree branches to identify areas contributing significantly to the unacceptably high loss rate and redesign the system accordingly. For...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
... of a backup ring when one is required can induce leakage. As described previously for gaskets, the correct O-ring material should be used. The failure analysis team should have the O-ring material analyzed and confirm with the manufacturer that the design specifies the correct material for the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780019
EISBN: 978-1-62708-268-6
..., and performance requirements. Basically, anything consisting of more than one item that is designed to accomplish one or more functions is a system. Selected References • Ballistic Systems Division Total Quality Management Handbook , Air Force Systems Command, Headquarters...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780001
EISBN: 978-1-62708-268-6
... the most likely cause. During the 1990 Gulf War, smart munitions received much of the credit for driving Saddam Hussein out of Kuwait. Smart munitions used laser target designators to guide them to their targets. The United States delayed Gulf War action for several weeks, however, because a key...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780035
EISBN: 978-1-62708-268-6
.... The system can fail to do what it is supposed to do; the system can do something it is intended to do but at the wrong time; or the system can do what it was designed to do but in some out-of-specification manner. The failure analysis team should define the fault-tree top undesired event to be...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... load experiences some deformation. Most parts are designed such that the load and resultant deformation are well below the elastic limit of the material. That is, when stresses are below the elastic limit, the part returns to its undeflected state when any deflection or deformation under load is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700215
EISBN: 978-1-62708-279-2
... Weld Design Guidelines for Chassis Structures ,” Auto/Steel Partnership, www.a-sp.org , November 2007 14.6 Demeri M.Y. , Forming of Advanced High Strength Steels , Metal Working: Sheet Forming , Vol 14B , ASM Handbook , ASM International , 2006 , p 530 – 538 10.31399...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780064
EISBN: 978-1-62708-281-5
.... The most important step in the optimizing process is to understand how the properties of a plastic will vary when processed and to alter the product design to avoid or manage this variation. The best resource for determining these variations is direct experience. Certainly, material suppliers can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110643
EISBN: 978-1-62708-247-1
... Test time and diagnosis effort for analog circuitry now consumes much more than its area proportion of most ICs, so analog design-for-test (DFT), especially built-in self-test (BIST) has become more important recently. This paper first describes the most commonly used general analog DFT techniques...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130001
EISBN: 978-1-62708-284-6
... fitness concerning the materials and processes used to manufacture the component. Design is an iterative process, often based on experience, to provide an assessment of the performance of a component for a certain period of time of expected or intended service life. The design process culminates in a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
... in. ([0.439/0.246] × 0.142 mm, or 0.254 mm). (This is not a hard-and-fast rule but useful for most applications.) The designer normally has a maximum ply thickness in mind when starting the design, based on prior experience with the materials. For the following discussion, assume a ply thickness of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040159
EISBN: 978-1-62708-300-3
... difficult task and an art in itself, requiring skills achieved only by years of extensive experience. Designing a correct preform allows the control of the volume distribution of the part during forging as well as control over the material flow. The main objective of preform design is to distribute the...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300047
EISBN: 978-1-62708-323-2
... Abstract This chapter discusses the effect of friction in the context of design. It explains how friction coefficients are determined and how they are used to make sizing and selection decisions. It covers practical issues associated with rolling friction, the use of lubricants, and the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
.... Designers might have little experience with regard to corrosion and the subtleties of material fabrication and assembly. In these cases, incorrect decisions can be extremely costly. A designer is seldom a corrosion engineer; therefore, it is necessary to convey a basic knowledge of corrosion to the...